Portion of a golf club head



FIG. 1 is an elevational view of a portion of a golf club head showing my new design;

FIG. 2 is a first perspective view thereof;

FIG. 3 is a heel end view thereof;

FIG. 4 is a toe end view thereof;

FIG. 5 is a bottom view thereof; and,

FIG. 6 is second perspective view thereof.

The uneven broken line immediately adjacent to the shaded area represents an unclaimed boundary of the design. The broken line showing of the pill shaped region within the shaded region and the remainder of the golf club head is for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a portion of a golf club head, as shown and described. 